This adventure has broadened not just my scientific knowledge but also radically changed my perception of research, cooperation, and my role as a scientist. Before this expedition, my learning was shaped primarily by textbooks and lectures, with the occasional practical thrown in. Deploying instruments in the deep ocean, receiving live data, and discussing real-time results with a group of dedicated researchers from around the world are experiences far removed from textbook learning. 

Every module week had something new to offer. One day, I might be measuring conductivity, temperature and depth and interpreting salinity-temperature-depth profiles; the next—filtering plankton samples under the microscope or looking at the benthic fauna collected by a multi net. The ocean is so roomless and layered, and being at sea necessitates thinking in systems, such as being able to relate physical conditions with biological processes. This engagement was the glue—data became stories, numbers became signs of change. 

Colleagues and friends from such a variety of backgrounds have also lent their transformative magic with their memorable presentations of themselves and their home country every evening. This forced me to work on my communication skills, nurturing new friendships and reinforcing another important lesson: science knows no borders. No matter how far apart we are culturally or how thick the accents, the curiosity binding us makes every conversation a spark of excitement and inspiration.

The rhythm of life aboard POLARSTERN was another lesson in resilience and adaptation. Strange shift hours, unpredictable weather and the ongoing motion of the sea all pushed me to confront my discomforts. However, it was in that challenge that I found transformation. I learned to trust my instincts, articulate better questions, and celebrate even the smallest successes. 

Upon reflection, this journey is somehow bigger than an academic exercise: it was a personal transformation. I carry now a new sense of purpose with a stronger bond to the ocean and an even deeper commitment to making science count. This expedition was a defining moment, affirming that fieldwork is not just a part of marine science; it is indeed its very lifeblood.

I loved every minute spent on POLARSTERN Research Vessel and its amazing crew.

                                                                                                                                                     N’guessan Cesaire Kouadio